比磁化 的英文怎麼說
中文拼音 [bǐcíhuà]
比磁化
英文
specific magnetization-
Fe - ni alloy fiber were first prepared in a mixed solution of ferrous and nickelous salts, using kbh4 as a reducing agent. conditions, such as quantity of naoh, concentration of salts, and species of surfactants, of preparation of fe - ni alloy were studied. the result show that fe - ni alloy were soft magnetic materials and they exhibited superparamagnetization at room temperature that have been widely used in industry
本文用液相還原法首次制備出纖維狀的fe - ni合金、球形的fe - co 、 co - ni合金、 fe - co - ni合金粉體材料,並對其性能進行了分析和測試,結果表明:這些合金粒徑小,比飽和磁化強度較大,矯頑力為零,呈現超順磁性,是非晶態的軟磁材料。The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明:粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用;磁化率和全鐵很好地指示生物風化成壤作用; sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用;總有機碳( toc )含量的高低,在一定程度上反應了土壤發育過程中氣候和植被狀況的變化,指示著成壤過程中腐殖質化的程度; caco3含量的變化,可以反映了黃土古土壤形成時的風化成壤作用的強弱程度,指示成壤過程中的淋溶作用和次生碳酸鹽化作用;並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異,即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。The finer the grain is, the higher the magnetic properties are, such as the improvement of coercivity. according to the theory of remanence, the intensity of remanence is in direct proportion to the density of magnet and ms. the improvement of remanence resulted from the interaction of density of magnet and ms, but the ms took the more important role
究其原因:晶粒的細化可以提高磁體的矯頑力;而根據剩磁的理論公式,剩磁與磁體密度和飽和磁化強度成正比,剩磁的提高是磁體密度和飽和磁化強度的提高的綜合效果,但其中飽和磁化強度的提高佔主導地位。With the increasing of the doping amount of these four rare earths, both the specific saturation magnetization and the specific remanent magnetization decrease gradually to the same extent
隨著稀土摻雜量的增加,樣品的比飽和磁化強度和比剩餘磁化強度均隨之下降,且摻雜各種不同稀土元素的下降幅度大體相同。The effects of the different kinds of rare earths and the doping amount of them on magnetic properties of bafe, 2o19 ultrafine powders ( including the specific saturation magnetization, the specific remanent magnetization and coercive force ) were firstly discussed systematically
首次查明了鋇鐵氧體粉末的磁性能(包括比飽和磁化強度、比剩餘磁化強度和內稟矯頑力)隨稀土元素種類及其摻雜量的變化規律。Using results of this paper and thermodynamical bethe ansatz method, one can study the thermodynamics of this model under open boundary conditions
在本文結果的基礎上,利用熱力學betheansatz方法,可進一步研究此模型的一些熱力學性質,如比熱、磁化率等。For an amount of substitution 0 < x < 0. 6, the znti substituted ferrite showed higher values of both coercive field strength and saturation magnetization than znir substituted phase
在0 x 0 . 6范圍內, znti代換的樣品比飽和磁化強度和矯頑力比znlr代換的要高。In this paper we put fonvard the method of introducing the light and middling lanthanon into the tb - fe - co magneto - optical materials by taking advantage of the higher saturation magnetization intensity, higher anisotropy and higher magneto - optical effect of light and middling rare - earth. moreover the law and mechanism of how the addition affect the magneto - optical property of the films were discussed
本文是在比較、總結現有關于tbfeco磁光薄膜的理論和背景研究的基礎上,利用輕、中稀土元素的高飽和磁化強度、高磁晶各向異性、高磁光效應的優點,提出在傳統的tbfeco磁光材料中摻入輕、中稀土元素的方法。Research in low - temperature magnetic behavior caused by superexchange interactions among transition metal ions in various compounds, including the experimental measurement of magnetic susceptibility and specific heat
研究領域:過渡金屬離子化合物之合成與磁性研究,包括低溫磁化率與低溫比熱之量測。By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion
由此得出結論,在非線性磁場計算中:採用迭代法的情況下,在各迭代循環之間進行磁導率修正時,一個欠鬆弛迭代過程是必需的;對永磁體中的等效電流修正時可以不作欠鬆弛迭代;在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值,會使得插值求出的磁導率在該磁飽和值附近有一突變,這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中,由於微波管磁路比較復雜,作者認為磁體的工作點並不能很好地反映磁體的工作狀態,而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況;要表示磁系統設計好壞的程度,則用磁能利用的效率為標準更好。Through measuring and comparing the magnetic susceptibility dates of loess profile in guanzhong plain, and according to regression equation the temperature, precipitation, the climate elements in this area were calculated
摘要通過測定和對比關中黃土剖面的磁化率數據,依據磁化率與溫度、降水量回歸方程,對該區全新世氣候要素進行了計算。The results indicate that the best annealing temperature is 1100 for 2h. a conclusion has been drawn that when the mol percent of iron is 60 %, the productions of powders and cycle samples have the best magnetic properties
通過對shs粉末樣品和磁環的磁性能測試發現:當反應產物中fe的摩爾分數為0 . 6時,粉末樣品粒徑大小均勻,產物具有較高的比飽和磁化強度和低的矯頑力。( 3 ) the saturation shear stresses vary as the relative permeability of the matrix fluids, the volume fraction of particles, and the square of the particles " saturation magnetization
磁流變液的飽和剪切屈服應力隨基液磁導率、磁性固體粒子濃度呈線性正比關系,隨磁性固體粒子的飽和磁化強度呈平方正比關系。( 2 ) the shear stresses vary as the relative permeability of the matrix fluids, the volume fraction of particles, and the square of the particles " magnetization. the shear stresses increase with the external magnetic field, but have saturation values
磁流變液的剪切應力隨基液磁導率、磁性固體粒子濃度呈線性正比關系,隨磁性固體粒子的磁化強度呈平方正比關系,隨著外加磁場的增大而迅速增大。X - ray diffraction results revealed that the structure of as - deposited smco film was amorphous and crystallization happened after the films annealed at 500 in vacuum. the magnetic tests of smco thin films showed that its coercivity reduced with the increase of film ' s thickness while the ratio of mr / ms was opposite. the films " coercivity and mr / ms declined after it annealed at 500 because the machanism of magnetization were changed from domain wall nailing into magnetic nuclear forming
研究結果表明,由於雜質fe的摻入降低了smco薄膜的磁性能;制備態smco薄膜為非晶態結構,矯頑力hc隨著薄膜厚度的增加而減小,剩磁比mr ms隨膜厚增加而增加;經過500真空退火熱處理后,薄膜出現smcos的結晶物,矯頑力hc降低, mr ms減小,磁化機制由疇壁釘扎類模型轉為形核類模型。First, we make the basic need of magnetic circuit clearly, present the theory formulation for permanent magnetic circuit of radial polarization using the method of analyzing the theory of magnetic circuit of axis polarization, and program the calculational programme to simulate the magnetic field of magnetic circuit applying finite difference method. then we continue to study using the adult soft of femm of calculation magnetic circuit magnetic field, consider many factors affecting it, get a great lot of data and curves, give some better magnetic circuit structures for reference at our laboratory. in the end, with the condition of our lab, we measure the permanent magnetic circuit completed, then the experimental and calculational simulation results have been discussed and analyzed
本文首先闡述了磁路計算及設計的基本要求,利用分析軸向永磁體磁路理論的方法,推導出了求解徑向磁化磁路的理論方程,應用有限差分法,編制了計算程序,對磁路的磁場進行了模擬;然後利用比較成熟的計算磁路磁場軟體femm作深入研究,考慮了影響磁路磁場的多種因素,得出了大量數據和曲線,給出了幾組比較合理的磁路結構,可供實驗的參考;最後,結合本實驗室條件,對現有永磁體磁路進行了冷測,將測試結果和計算模擬結果作了比較,並進行了討論和分析。The lagging of an effect behind its cause, as when the change in magnetism of a body lags behind changes in the magnetic field
滯后現象一個結果在原因之後拖沓,比如一個物體的磁化變化要比一個磁場變化慢O curve of dsdp607 v30 - 97 show that loess began to deposit on the terrace of the yellow river about 1. 20 ma b p, and passed thirteen climatic changes from drier and cooler to warmer and wetter later. the turn of sedimentation from alluvium to loess, an event of transformation from accumulation to down - cut of the yellow river, indicates a sharp tectonic uplift occurred around 1. 2 ma b p. key words : loess - paleosol ; susceptibility ; climatic changes ; tectonic movement ; yellow river ; yangfan section
通過對楊范剖面黃土地層巖性特徵沉積結構質量磁化率和頻率磁化率的分析及與深海氧同位素曲線的對比,劃分了剖面地層,初步確定了黃土沉積始於1 . 20 ma b p ,黃土沉積以來該區發生了13次大的乾冷暖濕氣候變化沉積轉型指示河流強烈加積轉變為河流侵蝕,代表約在1 . 20 ma b p發生過一次強烈的構造抬升事件。The particle size of the product is about 16 nm with perfect crystal structure. the product exhibits superparamagnetism and strong magnetic responsivity, the saturation magnetization being 55. 4emu / g and the magnetic susceptibility being 8. 28 10 - 3emu / oe. the particle size distribution is homogeneous with good dispersion. 2
產物具有完美的晶體結構,粒徑約16nm ,比飽和磁化強度為55 . 4emu g ,磁化率為8 . 28 10 ~ ( - 3 ) emu oe ,磁響應性強,具有超順磁性,剩磁和矯頑力均為零,粒徑分佈均勻,分散性良好。Preparation of sample for testing specific susseptibility
比磁化系數測定用樣品的制備分享友人